Every shared house has them. The unspoken rules about whose boyfriend is basically a third housemate now. The silent tension when someone's friend has been sleeping on the sofa for two weeks. The passive discomfort of running into a stranger in the kitchen at 7am when you're half-asleep and not ready to make small talk.
Guest rules are the most avoided conversation in shared living — because they feel personal, because no one wants to seem controlling, and because usually everything is fine until suddenly it isn't. Here's how to talk about it before it becomes a problem.
Why this conversation actually matters
A home is a private space, and that privacy is shared. When a guest comes in — even a lovely one — they use the bathroom, the kitchen, the common areas. They change the sound and energy of the place. A guest you like is fine. A guest who's basically moved in without paying rent is something else.
The reason this festers is that the people involved rarely see it the same way. The housemate with the constant partner thinks: "They're quiet, they buy milk, no big deal." The housemate who didn't sign up for a third person thinks: "I can't walk to the bathroom in my own house without putting trousers on." Both feel entirely reasonable from where they're standing.
The question of "how many nights is too many"
This is the one everyone dances around. There's no universal answer, but a practical rule of thumb that many houses land on is something like: staying over three or four nights a week regularly starts to feel like living there. At that point it's worth a conversation — not a confrontation, just a check-in.
Some landlords have clauses about long-term guests in the tenancy agreement, so it's worth knowing what yours says. A partner who stays over most nights could technically be classed as an additional occupant, with implications for utilities, insurance, and even the validity of the lease. This isn't common knowledge but it's worth being aware of.
"The goal isn't to gatekeep people's relationships — it's to make sure everyone in the house still feels at home in it."
Set the baseline before anyone moves in
The easiest time to agree on guest policy is before you've all settled in and before any patterns have formed. Even something informal is better than nothing — a quick conversation about expectations:
- Is there a rough limit on how many nights per week a regular guest stays?
- Is giving a heads-up expected, or is "my partner might be over this weekend" something people just handle themselves?
- If someone has a friend or family member visiting for a few days, is the group chat the right place to flag it?
- Is the common bathroom fair game, or is there a preference for guests to use the ensuite if there is one?
None of these are dramatic questions. Most housemates are reasonable people who've just never said any of this out loud.
When someone's partner has basically moved in
This is the specific scenario that causes the most strain, and it usually escalates slowly. Month one, they're over a lot. Month two, their toiletries have appeared in the bathroom. Month three, they have a key.
If this is happening and it's affecting you, raise it with your housemate — not the partner — and frame it around the house rather than the relationship. Not "I don't want them here all the time" but "I think we need to talk about how the house is working." The distinction matters. You're not attacking their relationship; you're advocating for the shared space.
Practical outcomes to aim for: a rough limit on nights per week, an agreement that guests contribute to shared costs (toilet paper, cleaning supplies, extra electricity) if they're effectively living there, and in some cases, a conversation about whether the person should be formally added to the tenancy if they're spending most of their time there anyway.
Short-term guests: the easier version
Weekend visitors, friends passing through, family staying for a few nights — these are generally much lower-stakes. The main things to get right are giving people enough notice (not "my friend's arriving in twenty minutes" the morning of), making sure common areas are accessible, and checking in if the guest will need something the whole house uses — like a bathroom everyone shares.
A shared household note — something kept in a group chat or an app like Crew where everyone can see the week at a glance — is an easy way to flag upcoming guests without it needing to be a big formal announcement.
The "I feel uncomfortable but I don't know why" problem
Sometimes the issue isn't really about the guest at all. It's about feeling like the house has stopped being yours — that you're the one adapting to accommodate someone else's life without it ever being discussed. That's a real thing and worth naming, even if it's harder to articulate.
When you raise it, try to be specific: not "I'm not comfortable with how much time they're here" but "I'd feel better if we had a loose agreement about nights per week, so I know what to expect." Specific asks get specific answers. Vague discomfort gets vague responses that don't actually resolve anything.
The rule under all the rules
The homes that handle guests well tend to be ones where people already talk to each other — not ones with perfectly worded policies. If your house has a culture of basic communication, guest situations rarely blow up. If it doesn't, no rulebook will fully fix it.
Start with the conversation. Everything else follows from there.
